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Cabaletta Bio

Cabaletta Bio works on 5 rare diseases tracked on Trial Friend, including Dermatomyositis, Multiple Sclerosis, Myasthenia Gravis and 2 more, with 5 recruiting clinical trials.

Cabaletta Bio is a Philadelphia cell therapy company applying a borrowed idea to a new problem: the CD19 CAR-T approach that transformed blood cancers, redirected at autoimmune disease. Its lead therapy, rese-cel (resecabtagene autoleucel), is a one-time infusion of a patient's own engineered T cells designed to deplete the B cells driving autoimmune attack, with the goal of resetting the immune system rather than suppressing it indefinitely.

The RESET clinical program spans several of the most stubborn autoimmune diseases: myositis (including dermatomyositis), systemic sclerosis, lupus, generalized myasthenia gravis, and pemphigus vulgaris. Myositis leads the way. After FDA alignment on registrational cohorts and a Regenerative Medicine Advanced Therapy designation, Cabaletta plans a rese-cel BLA submission in 2027, which would put it among the first companies to bring CAR-T to an autoimmune disease.

Data presented through 2026 covered more than 50 treated patients across myositis, lupus, and systemic sclerosis, including the first juvenile dermatomyositis patient and early experience giving rese-cel without preconditioning chemotherapy, a step toward making cell therapy gentler and more practical outside academic centers.

Type
Rare Disease Specialist
Ticker
CABA
Headquarters
Philadelphia, United States
Founded
2017
5
Active Rare Disease Trials
5
Rare Diseases in Portfolio
9
Years Active

Cabaletta Bio Drug Pipeline

Cabaletta Bio has 5 active clinical trials across 2 development stages, with 5 currently recruiting participants. Clinical trials advance through phases: Phase 1 tests safety in a small group, Phase 2 evaluates effectiveness and side effects, Phase 3 confirms benefit in a larger population, and Phase 4 monitors long-term safety after FDA approval.

Note: This pipeline counts the active and recruiting trials listed on this page, from ClinicalTrials.gov. For companies that work outside rare disease, we list only trials for rare diseases we track, so the company's full pipeline may be larger.

Understand Cabaletta Bio's pipeline
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3
Phase 23 trials
Systemic Lupus Erythematosus+1 more
Recruiting
2
Phase 32 trials
Idiopathic Inflammatory Myopathy+4 more
Recruiting
Recruiting

Cabaletta Bio Clinical Trials (5)

Active and recruiting clinical trials sponsored by Cabaletta Bio, sourced live from ClinicalTrials.gov. Each trial card shows the study phase, current recruitment status, conditions under investigation, study locations, eligibility criteria, and a direct link to the full ClinicalTrials.gov record. You can also download a one-page PDF summary to share with your doctor.

Note: Recruitment statuses on ClinicalTrials.gov may not immediately reflect recent FDA decisions, sponsor announcements, or enrollment changes. Always confirm a trial's current status directly with the study coordinator.

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RECRUITINGPHASE1, PHASE2Recently updatedNCT06359041

RESET-MG: A Study to Evaluate the Safety and Efficacy of CABA-201 in Participants With Generalized Myasthenia Gravis

Intervention: CABA-201, CABA-201

RESET-MG: A Phase 1/2 Open-Label Study to Evaluate the Safety and Efficacy of CABA-201 in Participants with Generalized Myasthenia Gravis

Ages 18 Years - 70 Years17 locations
View full study
RECRUITINGPHASE1, PHASE2Recently updatedNCT06121297

RESET-SLE: A Phase 1/2 Open-Label Study to Evaluate the Safety and Efficacy of CABA-201 in Subjects With Active Systemic Lupus Erythematosus

Intervention: CABA-201, CABA-201

Systemic Lupus ErythematosusLupus Nephritis

RESET-SLE: A Phase 1/2 Open-Label Study to Evaluate the Safety and Efficacy of CABA-201 in Subjects With Active Systemic Lupus Erythematosus

Ages 12 Years - 65 Years23 locations
View full study
RECRUITINGPHASE2, PHASE3Recently updatedNCT06154252

RESET-Myositis: An Open-Label Study to Evaluate the Safety and Efficacy of CABA-201 in Subjects With Active Idiopathic Inflammatory Myopathy or Juvenile Idiopathic Inflammatory Myopathy

Intervention: CABA-201 following preconditioning with fludarabine and cyclophosphamide

Idiopathic Inflammatory MyopathyDermatomyositisAnti-Synthetase SyndromeImmune-Mediated Necrotizing MyopathyJuvenile Dermatomyositis

RESET-Myositis: Open-Label Study to Evaluate the Safety and Efficacy of CABA-201 in Subjects with Active Idiopathic Inflammatory Myopathy or Juvenile Idiopathic Inflammatory Myopathy

Ages 6 Years - 75 Years35 locations
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RECRUITINGPHASE2, PHASE3Recently updatedNCT06328777

RESET-SSc: An Open-Label Study to Evaluate the Safety and Efficacy of CABA-201, a CD19-CAR T Cell Therapy, in Subjects With Systemic Sclerosis

Intervention: CABA-201, CABA-201

Systemic SclerosisSclerodermaInterstitial Lung Diseases

RESET-SSc: A Phase 1/2 Open-Label Study to Evaluate the Safety and Efficacy of CABA-201, a CD19-CAR T cell therapy, in Subjects with Systemic Sclerosis

Ages 18 Years - 75 Years10 locations
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RECRUITINGPHASE1, PHASE2Updated a few months agoNCT04422912

A Phase 1/2, Open-label, Safety and Dosing Study of Autologous CART Cells (Desmoglein 3 Chimeric Autoantibody Receptor T Cells [DSG3-CAART] or CD19-specific Chimeric Antigen Receptor T Cells [CABA-201]) in Subjects With Active, Pemphigus Vulgaris (RESET-PV)

Intervention: DSG3-CAART, CABA-201

A phase 1/2, open-label, safety and dosing study of autologous CART cells (desmoglein 3 chimeric autoantibody receptor T cells \[DSG3-CAART\] or CD19-specific Chimeric Antigen Receptor T cells \[CABA-201\]) in subjects with active, pemphigus vulgaris

Ages 18 Years+13 locations
View full study
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FDA-Approved Drugs

No FDA-approved drugs found for this company at this time.

Cabaletta Bio Trial Locations

Cabaletta Bio clinical trials are running at 98 sites in 4 countries. Click any country to drill down by state, city, and individual research facility. Proximity to a trial site is one of the most important factors in deciding whether to participate.

United States
92▼
United Kingdom
4▼
Canada
1▼
Spain
1▼

Rare Disease Focus Areas (5)

Diseases targeted by Cabaletta Bio's clinical trial and drug development programs

DermatomyositisAutoimmune & Inflammatory

Dermatomyositis is a rare autoimmune inflammatory disease causing muscle weakness and distinctive skin rashes, particularly over joints. It involves inflammation of muscles and skin blood vessels. Abo...

Prevalence: Approximately 1-10 cases per million people; juvenile-onset incidence about 0.4 cases per 100,000 children
Multiple SclerosisAutoimmune & Inflammatory

Multiple sclerosis is a chronic autoimmune disease where the immune system attacks the protective myelin sheath surrounding nerve fibers in the brain and spinal cord. This disrupts communication betwe...

Prevalence: Approximately 1 million people in the U.S.; about 1 in 300. Worldwide, an estimated 2.8 million people live with MS.
Myasthenia GravisNeurological & Neuromuscular

Myasthenia gravis is a chronic autoimmune neuromuscular disorder causing muscle weakness and rapid fatigue. Antibodies attack acetylcholine receptors at the neuromuscular junction, preventing proper m...

Prevalence: 1 in 5,000 people
Pemphigus VulgarisDermatologic

Pemphigus Vulgaris is a rare, potentially life-threatening autoimmune blistering disorder where the body produces antibodies against cell-to-cell adhesion molecules, causing blisters and erosions in t...

Prevalence: Approximately 0.5-3.2 cases per 100,000 people; higher incidence in certain ethnic groups (Ashkenazi Jews, Mediterranean, Indian populations)
Systemic SclerosisAutoimmune & Inflammatory

Systemic sclerosis (scleroderma) is a rare autoimmune disease in which the immune system triggers scarring (fibrosis) of the skin and internal organs while also damaging small blood vessels. It can ha...

Prevalence: About 276 per million U.S. adults in a large Detroit-area study; about 19 new cases per million adults each year

Patient Resources

Organizations and resources related to Cabaletta Bio's rare disease focus areas

Frequently Asked Questions About Cabaletta Bio

Common questions about Cabaletta Bio's rare disease programs, clinical trials, and treatments.